Packet #619611

Database ID:	619611
Mesh Packet ID:	`0x880cc5a2` Used for correlation across gateways
Timestamp:	2025-06-12 12:15:07 UTC
From Node:	CV-Oriol-T-8 (CV04)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TELEMETRY_APP Port: 67

Gateway:	Actinio-BBS-CLM-8 (22e9)
Channel:	LongFast
RSSI:	-106 dBm
SNR:	10.25 dBm
Hop Info:	2/4 hops Start: 4, Limit: 2

Temperature:	31.0°C

Raw Packet Analysis

Complete field breakdown and MQTT privacy/exposure analysis

Packet Structure

MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)

Total Size:	17 bytes
Gateway:	!eb3822e9
Channel:	LongFast
Payload Type:	TELEMETRY_APP
Hop Count:	2 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!eb3822e9` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (17 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3210304076` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`67` TELEMETRY_APP	enum
`decoded.payload_length`	`17` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-106.0` dBm Signal strength at gateway	int32
`rx_snr`	`10.25` dB Signal quality at gateway	float
`rx_time`	`1749730506` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	Not set	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`220` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1749730507.678942` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!eb3822e9`
Signal Metrics:	RSSI: -106.0 dBm SNR: 10.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	TELEMETRY_APP
Size:	17 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "time": 1749730500, "environment_metrics": { "temperature": 31.035894, "lux": 0.0 } }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!eb3822e9", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3210304076, "to": 4294967295, "id": 2282538402, "rx_time": 1749730506, "rx_snr": 10.25, "rx_rssi": -106, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 220, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0dc4c44a681a0a0d8349f8414d00000000", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1749730500, "environment_metrics": { "temperature": 31.035894, "lux": 0.0 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }

Raw Packet Data (17 bytes)

0dc4c44a681a0a0d8349f8414d00000000

Hex Analysis:

Size:	17 bytes
Format:	Protobuf (Protocol Buffers)
Encoding:	Binary with varint and length-delimited fields

This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.

Gateway	Time Offset	RSSI	SNR	Hops	Channel	Timestamp	Actions
Actinio-BBS-CLM-8 (22e9) Primary	0.000s Reference	-106.0 dBm	10.25 dB	2	LongFast	2025-06-12 12:15:07	Current
CV-Oriol-GW-8 📡 (CVO2)	-6.283s Before	-44.0 dBm	5.75 dB	0	LongFast	2025-06-12 12:15:01	View
Cardedeu-GW-868 (GC)	+1.611s After	-134.0 dBm	-16.00 dB	3	LongFast	2025-06-12 12:15:09	View
EB3FWC-Girona📡-GW-868 (EB3F)	+3.336s After	-88.0 dBm	1.75 dB	4	LongFast	2025-06-12 12:15:11	View
Dani-CLM-8 (7b1f)	+3.578s After	-58.0 dBm	10.75 dB	2	LongFast	2025-06-12 12:15:11	View
MQTTGWL-CLM-868 (5688)	+4.102s After	-61.0 dBm	5.75 dB	4	LongFast	2025-06-12 12:15:11	View

Packet #619611 Success

Packet Information

Payload Data

Decoded Data:

Environment Metrics: